<template>

  <button @click="show = !show">切换隐藏显示</button>

  <!-- <HelloWorld v-if="show"/> -->
   <Test/>

</template>

<script setup>
  import {ref} from 'vue';
  import HelloWorld from './components/HelloWorld.vue';
import Test from './components/Test.vue';

  let show = ref(true);




</script>
